CVE-2026-69186

c-ares is an asynchronous resolver library. Prior to 1.34.7, aresdnsparse trusts the attacker-controlled ANCOUNT, NSCOUNT, and ARCOUNT fields before confirming that the DNS response contains enough bytes for the claimed records. Because processanswer invokes parsing before transaction ID and...

CVE-2026-69184

c-ares (asynchronous DNS resolver library) prior to 1.34.7 is affected by a CPU-exhaustion denial-of-service in ares_dns_name_parse(). The function enforces backward DNS compression pointers but does not bound total pointer hops or assembled name length, so a malicious DNS server can send a respo...

CVE-2026-69186

c-ares , an asynchronous DNS resolver library, is affected by a memory-amplification denial of service in ares_dns_parse(). Prior to 1.34.7 , the function trusts attacker-controlled ANCOUNT, NSCOUNT, and ARCOUNT header fields without first confirming the response contains enough bytes for the cla...

CVE-2026-69186 c-ares: Memory-amplification denial of service via unvalidated DNS header record counts

c-ares is an asynchronous resolver library. Prior to 1.34.7, aresdnsparse trusts the attacker-controlled ANCOUNT, NSCOUNT, and ARCOUNT fields before confirming that the DNS response contains enough bytes for the claimed records. Because processanswer invokes parsing before transaction ID and...

EUVD-2026-83212

c-ares is an asynchronous resolver library. Prior to 1.34.7, aresdnsparse trusts the attacker-controlled ANCOUNT, NSCOUNT, and ARCOUNT fields before confirming that the DNS response contains enough bytes for the claimed records. Because processanswer invokes parsing before transaction ID and...

CVE-2020-8277

CVE-2020-8277 For educational purposes only. Quick Run root@kitploit: clone this repository $ git clone https://github.com/masahiro331/CVE-2020-8277 run bind $ docker build -t bind-local ./bind Need TCP fallback $ docker run --rm --name bind -it -p 53:53 -p 53:53/udp bind use " v15.2.1" version I...

Security update for c-ares

This update for c-ares fixes the following issues: CVE-2024-25629: out of bounds read in aresreadline bsc1220279. CVE-2025-31498: use-after-free in readanswers when processanswer may re-enqueue a query bsc1240955. CVE-2025-62408: c-ares 1.32.3-1.34.5 use after free bsc1254738. CVE-2026-33630:...

SUSE-SU-2026:4021-1 Security update for c-ares

This update for c-ares fixes the following issues: - CVE-2024-25629: out of bounds read in aresreadline bsc1220279. - CVE-2025-31498: use-after-free in readanswers when processanswer may re-enqueue a query bsc1240955. - CVE-2025-62408: c-ares 1.32.3-1.34.5 use after free bsc1254738. -...

c-ares : Use-after-free / double-free in c-ares query-completion handling, remotely triggerable via ares_getaddrinfo() over TCP

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AZL-99093 CVE-2026-33630 affecting package fluent-bit 3.1.10-6

c-ares is an asynchronous resolver library. From ver 1.32.3 until 1.34.7, a use-after-free / double-free in c-ares' query-completion handling. The same flaw — a query's callback being invoked while the query is still linked in the channel's internal lookup structures — is present at multiple poin...

ALPINE-CVE-2026-33630

c-ares is an asynchronous resolver library. From ver 1.32.3 until 1.34.7, a use-after-free / double-free in c-ares' query-completion handling. The same flaw — a query's callback being invoked while the query is still linked in the channel's internal lookup structures — is present at multiple poin...

CVE-2026-33630

c-ares is an asynchronous resolver library. From ver 1.32.3 until 1.34.7, a use-after-free / double-free in c-ares' query-completion handling. The same flaw — a query's callback being invoked while the query is still linked in the channel's internal lookup structures — is present at multiple poin...

AZL-99095 CVE-2026-33630 affecting package nodejs 24.18.1-1

c-ares is an asynchronous resolver library. From ver 1.32.3 until 1.34.7, a use-after-free / double-free in c-ares' query-completion handling. The same flaw — a query's callback being invoked while the query is still linked in the channel's internal lookup structures — is present at multiple poin...

CVE-2026-33630

c-ares , an asynchronous DNS resolver library, is affected by a use-after-free / double-free in its query-completion handling, present from version 1.32.3 through 1.34.6 and fixed in 1.34.7 . The flaw occurs when a query's callback is invoked while the query is still linked in the channel's inter...

EUVD-2026-70664

c-ares is an asynchronous resolver library. From ver 1.32.3 until 1.34.7, a use-after-free / double-free in c-ares' query-completion handling. The same flaw — a query's callback being invoked while the query is still linked in the channel's internal lookup structures — is present at multiple poin...

CVE-2026-33630 c-ares : Use-after-free / double-free in c-ares query-completion handling, remotely triggerable via ares_getaddrinfo() over TCP

c-ares is an asynchronous resolver library. From ver 1.32.3 until 1.34.7, a use-after-free / double-free in c-ares' query-completion handling. The same flaw — a query's callback being invoked while the query is still linked in the channel's internal lookup structures — is present at multiple poin...

CVE-2026-33630 c-ares : Use-after-free / double-free in c-ares query-completion handling, remotely triggerable via ares_getaddrinfo() over TCP

c-ares is an asynchronous resolver library. From ver 1.32.3 until 1.34.7, a use-after-free / double-free in c-ares' query-completion handling. The same flaw — a query's callback being invoked while the query is still linked in the channel's internal lookup structures — is present at multiple poin...

CVE-2026-33630

c-ares is an asynchronous resolver library. From ver 1.32.3 until 1.34.7, a use-after-free / double-free in c-ares' query-completion handling. The same flaw — a query's callback being invoked while the query is still linked in the channel's internal lookup structures — is present at multiple poin...

CVE-2026-33630

c-ares is an asynchronous resolver library. From ver 1.32.3 until 1.34.7, a use-after-free / double-free in c-ares' query-completion handling. The same flaw — a query's callback being invoked while the query is still linked in the channel's internal lookup structures — is present at multiple poin...

CVE-2026-33630 c-ares : Use-after-free / double-free in c-ares query-completion handling, remotely triggerable via ares_getaddrinfo() over TCP

c-ares is an asynchronous resolver library. From ver 1.32.3 until 1.34.7, a use-after-free / double-free in c-ares' query-completion handling. The same flaw — a query's callback being invoked while the query is still linked in the channel's internal lookup structures — is present at multiple poin...